I spent three nights here in February, and I found it comfortable and charming. The location in the Marais is great for walking around, visiting little shops, and enjoying some really tasty food. My room (Room #1) was a little bit quirky, but very nice. It had two levels, with a desk, daybed, and minibar on the lower level, and the bed, wardrobe, and bathroom on the mezzanine. The ceiling on the upper level was pretty low, especially where the beams crossed it. I would not recommend this particular room for anyone taller than 5'8", because I think you would hit your head in the shower. My HUGE window faced the street, and it was fairly quiet, although I suspect it might be noisy in the summer. Everything was very clean.
The bed was comfortable, and the breakfast was basic but fresh. One thing to note is that you are not supposed to bring food into the room, so you have to eat all your meals out. The free wi-fi was pretty fast and reliable.
Overall a great choice -- I would stay here again!